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Proceedings Paper

Fast steering mirror implementation for reduction of focal-spot wander in a long-distance free-space optical communication link
Author(s): Michele R. Suite; Harris R. Burris; Christopher I. Moore; Michael J. Vilcheck; Rita Mahon; Carmen Jackson; Mena F. Stell; Mark A. Davis; William S. Rabinovich; William J. Scharpf; Anne E. Reed; G. Charmaine Gilbreath
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Paper Abstract

One of the causes of power loss in a free-space optical communication link is beam motion or received spot wander. The power spectrum of the spot motion indicates that most of the frequency content is less than ~500 Hz. A fast steering mirror (FSM) controlled by a position-sensing detector (PSD) has the potential to correct for a significant portion of the focal spot position fluctuations and thus the power loss. A FSM controlled with a Germanium PSD was installed on the receiver of the NRL Chesapeake Bay free-space lasercomm test facility. Results are presented from the initial tests performed using this system to measure and correct for wander of an optical beam propagated across the bay (20 mile round-trip).

Paper Details

Date Published: 27 January 2004
PDF: 8 pages
Proc. SPIE 5160, Free-Space Laser Communication and Active Laser Illumination III, (27 January 2004); doi: 10.1117/12.507701
Show Author Affiliations
Michele R. Suite, Naval Research Lab. (United States)
Harris R. Burris, Research Support Instruments, Inc. (United States)
Christopher I. Moore, Naval Research Lab. (United States)
Michael J. Vilcheck, Naval Research Lab. (United States)
Rita Mahon, Titan Corp. (United States)
Carmen Jackson, Research Support Instruments, Inc. (United States)
Mena F. Stell, Research Support Instruments, Inc. (United States)
Mark A. Davis, Honeywell Technical Solutions Inc. (United States)
William S. Rabinovich, Naval Research Lab. (United States)
William J. Scharpf, Naval Research Lab. (United States)
Anne E. Reed, Naval Research Lab. (United States)
G. Charmaine Gilbreath, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 5160:
Free-Space Laser Communication and Active Laser Illumination III
David G. Voelz; Jennifer C. Ricklin, Editor(s)

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